Computer Networks20765 marksNumerical: IP addressing subnet calculationIPv4 Addressing & Sub-netting
In a block of address, we know the IP Address of one host is 192.34.12.56/28. What are the first address(network address) and the last address (limited broadcast address) in this block?
In a block of address, we know the IP Address of one host is 192.34.12.56/28. What are the first address(network address) and the last address (limited broadcast address) in this block? [5]
- IP Address: $192.34.12.56/28$ - Prefix length: $/28$ (28 network bits) Only the last octet varies; first three octets remain $192.34.12$. --- $/28$ means 28 ones followed by 4 zeros: $$11111111.11111111.11111111.11110000 = 255.255.255.240$$ --- $$\text{Block size} = 256 - 240 = 16$$ Network bou...